90434232 has 80 divisors (see below), whose sum is σ = 289499760. Its totient is φ = 25837056.

The previous prime is 90434231. The next prime is 90434263. The reversal of 90434232 is 23243409.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 90434196 and 90434205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90434231) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5433 + ... + 14504.

It is an arithmetic number, because the mean of its divisors is an integer number (3618747).

Almost surely, 2^90434232 is an apocalyptic number.

It is an amenable number.

90434232 is an abundant number, since it is smaller than the sum of its proper divisors (199065528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90434232 is a wasteful number, since it uses less digits than its factorization.

90434232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19962 (or 19949 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 90434232 is about 9509.6914776453. The cubic root of 90434232 is about 448.8600480151.

The spelling of 90434232 in words is "ninety million, four hundred thirty-four thousand, two hundred thirty-two".